What is the kW to kVA formula?
Divide kilowatts by power factor.
Real to apparent power
kW to kVA Calculator
Convert kilowatts to kilovolt-amperes using power factor for generator, transformer, UPS, motor, and AC load planning.
Interactive calculator
kW to kVA Calculator
Result
6.25 kVA
kVA = kW ÷ PF
Live circuit diagram
kW to kVA Calculator visualized in real time
Values update as you use the calculator.
Input
—
Circuit setting
—
Calculated output
Enter values to see the live result
Quick answers
kW to kVA Calculator: quick answers
Get concise answers to the most common kw to kva calculator questions before reviewing the formulas, examples, and detailed guidance below.
What is a practical kW to kVA example?
10 kW at PF 0.8 equals 12.5 kVA.
Why do units matter?
A missed factor of 1000 can make the result unusable, so confirm every input and output unit.
Formula
kW to kVA formulas
Choose the formula that matches the electrical system and known values.
Standard
kVA = kW ÷ PF
Divide real power by power factor.
Unity PF
kVA = kW
Numeric values match at PF 1.
Inverse
kW = kVA × PF
Find real power from apparent power.
How to use
Calculate in five clear steps
Check every unit and use measured or nameplate values where possible.
- 1. Enter real power in kW.
- 2. Enter rated or measured PF.
- 3. Divide kW by PF.
- 4. Review kVA demand.
- 5. Validate surge, duty, and manufacturer ratings.
Worked examples
Practical calculation examples
Examples make the formula and its assumptions easier to verify.
5 kW at PF 0.8
6.25 kVA
10 kW at PF 0.9
11.11 kVA
20 kW at PF 0.8
25 kVA
50 kW at PF 0.95
52.63 kVA
75 kW at PF 0.85
88.24 kVA
100 kW at PF 1
100 kVA
Accuracy
Common mistakes and limitations
The result is only as reliable as the selected formula and input data.
Conversion library
Explore all 44 electrical calculators
Continue from the kW to kVA Calculator to a dedicated conversion tool for watts, amps, volts, kW, kVA, energy, batteries, or circuit calculations. Each linked page includes its own formula, examples, and guidance.
FAQ
kW to kVA questions
Direct answers to common calculation questions.
What is the kW to kVA formula?
Divide kilowatts by power factor.
What is a practical kW to kVA example?
10 kW at PF 0.8 equals 12.5 kVA.
Why do units matter?
A missed factor of 1000 can make the result unusable, so confirm every input and output unit.
Does power factor matter?
Yes. Without PF, kW cannot be converted accurately to kVA.
Can I use nameplate values?
Yes. Nameplate or reliable measured values are preferred for planning calculations.
Does this replace electrical design?
No. Final work requires code checks, equipment data, installation conditions, and qualified review.
Can I use decimal values?
Yes. Enter positive decimal values using consistent units.
Why might measured results differ?
Voltage variation, load changes, efficiency, harmonics, and instrument accuracy can affect field measurements.
Is the calculator free?
Yes. The calculator runs instantly without registration.
Can I copy the result?
Yes. Use the copy button beneath the calculated result.
Related calculators
Continue converting electrical values
Use related published tools for the next step in your calculation.